Trapezium stars of M42

[keerthi kiran]

Hello All,
After Hemant uploaded his amazing M42 H-Alpha photo, I got curious about the separation between the 4 (or more) stars of the trapezium cluster in the Orion nebula.
I could not find the data anywhere...
Does anyone know what is the separation in arc second?

Regards,
Keerthi

[Ajay Talwar]

Hi Keerthi,


See the image attached (from http://www.cityastronomy.com/trapezium-lg.jpg )

The above differs very slightly from the picture in the Burnham Celestial Handbook, also attached with this email.

Ajay Talwar

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From: keerthi kiran <info...@gmail.com>
To: BAS <b-...@googlegroups.com>
Sent: Friday, February 22, 2013 2:19 PM
Subject: [-BAS-] Trapezium stars of M42

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[keerthi kiran]

Thank you very much Ajay. This is exactly what I was looking for.

Regards
Keerthi

[Rakesh Nath]

Thats actually quite large, which is curious, I mean these stars are actually separated by almost a light year. Now that I think about it thats a lot of distance(something like 10000 solar systems). Didn't realize they were separated by so much

Regards
        Rakesh Nath  
"It is far better to grasp the Universe as it really is than to persist in delusion, however satisfying and reassuring." Carl Sagan

[Sankaranarayanan K V]

Keerthi, 

Glad you brought this up. After seeing Hemant's image I have been thinking of capturing the nebula better so that the core is not overexposed. Then I came to know of the trapezium and didn't know its relative size compared to the nebula. I found the images on this page which puts the trapezium size in perspective to the size of the nebula: http://www.grelf.net/m42.html 

Regards

Sankar